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Finding the Fourth Proportional to 15,026.62, 20,734.27 and 8,310.94

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Solution

The fourth proportional to 15,026.62, 20,734.27 and 8,310.94 is: 11,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,026.62 : 20,734.27 = 8,310.94 : x
  2. Step 2: Convert to fraction form
    15,026.62/20,734.27 = 8,310.94/x
  3. Step 3: Cross multiply
    15,026.62x = 20,734.27 × 8,310.94
  4. Step 4: Simplify right side
    15,026.62x = 172,321,273.91
  5. Step 5: Solve for x
    x = 172,321,273.91/15,026.62
  6. Step 6: Final answer
    x = 11,467.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.